clash (n.)
- action
- affray
- altercation
- antagonism
- antipathy
- argument
- bang
- battle
- belch
- belligerence
- blare
- box
- brawl
- bray
- break
- broil
- brunt
- brush
- bullfight
- bump
- burr
- burst
- bust
- buzz
- cackle
- cannon
- carom
- caw
- clamor
- clang
- clangor
- clank
- clap
- close
- cockfight
- collision
- combat
- concussion
- conflict
- contention
- contest
- counter
- counterattack
- counterbalance
- countercheck
- counterpoise
- crack
- crack-up
- crash
- croak
- cross
- crunch
- difference
- disagreement
- discord
- discordance
- disharmony
- dispute
- dissent
- dogfight
- duel
- embroilment
- encounter
- engagement
- enmity
- fence
- feud
- fight
- flap
- flop
- foul
- fracas
- fray
- fret
- friction
- gall
- grapple
- grate
- grind
- groan
- growl
- grumble
- hammering
- harshness
- hate
- hatred
- hit
- hostility
- hurt
- impact
- impingement
- incompatibility
- inharmoniousness
- jangle
- jar
- jolt
- jostle
- joust
- knock
- malevolence
- malice
- malignity
- meet
- meeting
- melee
- mischief
- mismatch
- noise
- object
- offset
- onslaught
- percussion
- quarrel
- quarrelsomeness
- ramming
- rap
- rasp
- report
- repugnance
- resist
- riot
- row
- rub
- rumble
- rumpus
- scramble
- scrap
- scrape
- scratch
- scrimmage
- scrunch
- scuffle
- set-to
- shock
- sideswipe
- skirmish
- slam
- slap
- slat
- smack
- smash
- smash-up
- smashing
- snarl
- snore
- spar
- spite
- spitefulness
- splat
- squabble
- strike
- struggle
- swap
- tap
- tauromachy
- tension
- thrusting
- thwack
- tilt
- tourney
- try
- tug-of-war
- tussle
- twang
- unpleasantness
- vary
- wallop
- war
- whack
- whop
- wrangle
- wrestle
clash (v.)
- action
- antagonize
- argue
- bang
- battle
- belch
- blare
- blat
- box
- brawl
- bray
- break
- broil
- brush
- bump
- burr
- burst
- bust
- buzz
- cackle
- cannon
- carom
- caw
- chirr
- clamor
- clang
- clangor
- clank
- clap
- close
- collide
- combat
- concuss
- conflict
- confute
- contend
- contest
- contradict
- contravene
- controvert
- counter
- counteract
- counterattack
- counterbalance
- countercheck
- counterpoise
- counterpose
- countervail
- crack
- crash
- craunch
- croak
- cross
- crump
- crunch
- differ
- disaccord
- disagree
- discord
- dispute
- dissent
- diverge
- dogfight
- duel
- encounter
- fence
- feud
- fight
- flap
- flop
- foul
- fray
- fret
- gall
- grapple
- grate
- grind
- groan
- growl
- grumble
- hate
- hit
- hurt
- hurtle
- impact
- impinge
- jangle
- jar
- jolt
- jostle
- joust
- knock
- meet
- mismatch
- mismate
- negate
- noise
- object
- offset
- oppose
- oppugn
- percuss
- quarrel
- rap
- rasp
- report
- resist
- riot
- row
- rub
- rumble
- rumpus
- scramble
- scranch
- scrap
- scrape
- scratch
- scrimmage
- scrunch
- scuffle
- shock
- sideswipe
- skirmish
- slam
- slap
- slat
- smack
- smash
- snarl
- snore
- spar
- spite
- splat
- squabble
- strike
- strive
- struggle
- swap
- tap
- thwack
- tilt
- tourney
- try
- tussle
- twang
- unstring
- untune
- vary
- wallop
- war
- whack
- wham
- whap
- whomp
- whop
- wrangle
- wrestle